{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QJIVA2MUMS3NFUNXC7U66L54XK","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ee6083961a6bad6692ff2a81a9e5a6ab74e35a55febed9ae7e9b6c106585fce1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2021-01-21T08:39:51Z","title_canon_sha256":"08567cafcb4c691d81d7615ac270ed75caa2d39b93dfb440e9d2f69831a31853"},"schema_version":"1.0","source":{"id":"2101.08501","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.08501","created_at":"2026-07-05T02:09:57Z"},{"alias_kind":"arxiv_version","alias_value":"2101.08501v1","created_at":"2026-07-05T02:09:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.08501","created_at":"2026-07-05T02:09:57Z"},{"alias_kind":"pith_short_12","alias_value":"QJIVA2MUMS3N","created_at":"2026-07-05T02:09:57Z"},{"alias_kind":"pith_short_16","alias_value":"QJIVA2MUMS3NFUNX","created_at":"2026-07-05T02:09:57Z"},{"alias_kind":"pith_short_8","alias_value":"QJIVA2MU","created_at":"2026-07-05T02:09:57Z"}],"graph_snapshots":[{"event_id":"sha256:1ba5b6bc80fda95a9d46c902cd09a6f36c3e9b84b8d21db7eb2658aeaf0ba2bb","target":"graph","created_at":"2026-07-05T02:09:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.08501/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An ultrafast laser delivering 10.4 kW average output power based on coherent combination of twelve stepindex fiber amplifiers is presented. The system emits close-to-transform-limited 254 fs pulses at 80 MHz repetition rate, has a high beam quality (M2<=1.2), and a low relative intensity noise of 0.56% in the frequency range of from 1 Hz to 1 MHz. Automated spatiotemporal alignment allows for hands-off operation.","authors_text":"Andreas T\\\"unnermann, Arno Klenke, Christopher Aleshire, Elissa Haddad, Fran\\c{c}ois L\\'egar\\'e, Jens Limpert, Michael M\\\"uller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2021-01-21T08:39:51Z","title":"10.4 kW coherently combined ultrafast fiber laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.08501","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5e14cb062d1653164532facbca4cb026094b170f6fbc772d448ccc84efd426cb","target":"record","created_at":"2026-07-05T02:09:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ee6083961a6bad6692ff2a81a9e5a6ab74e35a55febed9ae7e9b6c106585fce1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2021-01-21T08:39:51Z","title_canon_sha256":"08567cafcb4c691d81d7615ac270ed75caa2d39b93dfb440e9d2f69831a31853"},"schema_version":"1.0","source":{"id":"2101.08501","kind":"arxiv","version":1}},"canonical_sha256":"825150699464b6d2d1b717e9ef2fbcbaae3bc673e1d8dd1bec116f085bc0f96b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"825150699464b6d2d1b717e9ef2fbcbaae3bc673e1d8dd1bec116f085bc0f96b","first_computed_at":"2026-07-05T02:09:57.366611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:09:57.366611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XHeFr8aJo3aSK2ISC346AGhqTBuSPpl2qJJ7B5QUEMQASPFdlqwJrI4BBd9tfjnJlAtx6DWW8LBJ0rJgpe24CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:09:57.367072Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.08501","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e14cb062d1653164532facbca4cb026094b170f6fbc772d448ccc84efd426cb","sha256:1ba5b6bc80fda95a9d46c902cd09a6f36c3e9b84b8d21db7eb2658aeaf0ba2bb"],"state_sha256":"7c67743db4bab7b5ff67c4dcaffc42629f8b9997e34054f9c618bc9acc8a9c1c"}